Base | Representation |
---|---|
bin | 1011111100110… |
… | …1011110001001 |
3 | 10111022121010200 |
4 | 2333031132021 |
5 | 100312442211 |
6 | 4550202413 |
7 | 1146024045 |
oct | 277153611 |
9 | 114277120 |
10 | 50124681 |
11 | 26326462 |
12 | 14953409 |
13 | a500099 |
14 | 692b025 |
15 | 4601b56 |
hex | 2fcd789 |
50124681 has 12 divisors (see below), whose sum is σ = 72579780. Its totient is φ = 33334560.
The previous prime is 50124649. The next prime is 50124691. The reversal of 50124681 is 18642105.
It can be written as a sum of positive squares in 2 ways, for example, as 25918281 + 24206400 = 5091^2 + 4920^2 .
It is not a de Polignac number, because 50124681 - 25 = 50124649 is a prime.
It is a super-2 number, since 2×501246812 = 5024967290703522, which contains 22 as substring.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (50124611) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2826 + ... + 10403.
It is an arithmetic number, because the mean of its divisors is an integer number (6048315).
Almost surely, 250124681 is an apocalyptic number.
It is an amenable number.
50124681 is a deficient number, since it is larger than the sum of its proper divisors (22455099).
50124681 is a wasteful number, since it uses less digits than its factorization.
50124681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13656 (or 13653 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 27.
The square root of 50124681 is about 7079.8786006541. The cubic root of 50124681 is about 368.7091148389.
Adding to 50124681 its reverse (18642105), we get a palindrome (68766786).
It can be divided in two parts, 50124 and 681, that added together give a palindrome (50805).
The spelling of 50124681 in words is "fifty million, one hundred twenty-four thousand, six hundred eighty-one".
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